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301.
If you want to get ahead,get a theory 总被引:1,自引:0,他引:1
Although Genevan research has provided a detailed analysis of cognitive structures, our knowledge of cognitive processes remains fragmentary. The focus is now not only on macro-development but also on changes occurring in children's spontaneous action sequences in micro-formation. A series of experiments designed to study goal-oriented behavior is in progress. This paper describes the action sequences of 67 subjects between 4;6 and 9;5 years in a block balancing task. It is not a study of children's understanding of a specific notion in physics, but an attempt to pave the way towards understanding the more general processes of cognitive behavior. The analysis focuses on the interplay between the child's action sequences and his implicit theories which the observer infers from the sequences rather than from his verbal comments. Emphasis is placed on the role of counterexamples and on shifts in attention from goal to means. The construction and overgeneralization of ‘theories-in-action’ appear to be dynamic and general processes which are not stage-linked. The results also suggest certain functional rather than structural analogies between the acquisition of physical knowledge and the acquisition of language. 相似文献
302.
Tan Annette Moore Dennis W. Dixon Robyn S. Nicholson Tom 《Journal of Behavioral Education》1994,4(2):177-189
We report an experimental investigation of the effects on comprehension of increasing the decoding speed of three adult learners of English as a Second Language (ESL). Participants were taught to read lists of 25 difficult words in isolation until they could read the entire list at a mean rate of not more than 1.5 secs per word. They were then asked to read passages containing these words. Decoding speed and accuracy measures, for both the word lists and passages, and passage comprehension measures, were obtained. In a temporally contiguous within-subjects repeated trials reversal design, decoding training on isolated words was shown to be associated with significant increases in decoding speed and accuracy both in isolation and context, and improvements in the participants' comprehension. With all participants rate and accuracy gains in context were maintained in the final reversal phase, though the comprehension score gains did not. These results are discussed in terms of their implications for a decoding sufficiency hypothesis. 相似文献
303.
Gert ten Hoopen Leo Boelaarts Annette Gruisen Iwahn Apon Karen Donders Nico Mul Simone Akerboom 《Attention, perception & psychophysics》1994,56(1):110-120
Nakao and Axelrod (1976) and van Noorden (1975) showed that the threshold for discriminating an anisochronous duple rhythm (a series of clicks with a temporal offset on every other one) from an isochronous rhythm (no offset) is poorer when the clicks are presented alternately to the two ears than when they are presented to the same ears. Van Noorden reported that the difference between the thresholds in the alternating and nonalternating conditions varied with the tempo of the sequence. Nakao and Axelrod found invariance of this threshold difference with sequence speed. According to our quantification of temporal processing of interaural sequences, the latter result should be expected. We carried out five psychophysical experiments to establish interaural and monaural discrimination between isochronous and anisochronous rhythms. Across experiments, base time intervals of 60–720 msec were spanned. The main result was that we replicated the poorer discrimination for interaural sequences. This deterioration in discrimination was the same for all sequence speeds. It was also the case that the thresholds were almost constant up to a sound repetition rate of about 3 per second, but increased linearly with slower rates. This result supports evidence in the literature that temporal processing of sequences faster than about 3–4 sounds per second differs from temporal processing of slower sequences. 相似文献
304.
Many studies have documented the benefits of work and family roles for both physical and mental health. A number of these studies have suggested that work and family roles are beneficial to the degree that they entail rewarding relationships and activities. Using data from the National Survey of Families and Households (N = 10633; 17 percent African-American), this paper examines three questions: (a) Are gender and race differences in health explained by gender and race differences in work and family roles? (b) How do characteristics of work and family roles contribute to health? (c) Are there gender and race differences in the effects of work and family role characteristics? Simple occupancy of work and family roles does not explain away gender and race differences in health. Several characteristics of work and family roles have significant health effects, but there are few significant gender and race differences in those effects, and role characteristics do not change the pattern of gender and race differences in health. 相似文献
305.
We describe the growth of interest in the ethics of research with human participants based on articles abstracted in Psychological Abstracts and PsycLIT. Interest was low and variable until 1974, after which there was a marked increase in the number of articles published. We explain this emergence of ethical interest in terms of the social climate of concern for human rights in the 1960s and 1970s, the 1973 revision of the American Psychological Association's ethical principles, and the development of federal regulation of research with human participants. 相似文献
306.
307.
This paper compares the characteristics of 274 children whose parents agreed to provide information about their children's functioning in research with children whose parents did not. Parents had provided permission for child participation in school-approved research. Measures included self-, peer, teacher, and parent ratings. Parents of minority children were less likely to participate than parents of nonminority children. Among nonminorities, children of parent participants were viewed as more socially skilled and liked by their peers; teachers rated them as having less attention problems, less depression, and better academic skills than children of nonparticipating parents. Among minorities, no differences emerged. Implications for research involving the use of parent ratings are discussed.Portions of this paper were presented at the annual meeting of the Society for Research in Child and Adolescent Psychopathology, Sarasota, Florida, February 1992. The authors appreciate the efforts of Shari Wasserstein in assisting with the organization of the data. The authors also appreciate the helpful comments of two anonymous reviewers. 相似文献
308.
309.
The present aim was to examine the reliability and validity of the ‘Rejection of Christianity Scale’ (Greer & Francis, 1992) among a sample of Northern Irish undergraduate students. A slightly modified version of the ‘Rejection of Christianity Scale’ was administered alongside questions of religiousness and practice. Among a sample of 217 Northern Irish undergraduate students, support was found for the reliability and unidimen‐sionality of the ‘Rejection of Christianity Scale’. The construct validity of the scale was demonstrated with males displaying more signs of rejecting Christianity than females. Furthermore, higher scores on the ‘Rejection of Christianity Scale’ were significantly associated with lower levels of self‐reported religiousness, and lower frequency of church attendance. Limitations of the present study are presented and a further possible modification of the ‘Rejection of Christianity Scale’ is presented. 相似文献
310.
Annette D. Sahar Sebastian M. Brenninkmeyer Daniel C. O'Connell 《Journal of psycholinguistic research》1997,26(4):449-463
Maya Angelou's performance of her poem On the Pulse of Morning at the inauguration of William Jefferson Clinton as 42nd President of the United States on January 20, 1993, was compared with other poetry and prose performances. Measurements of her pause frequency, pause location, pause duration, phrase length, speech rate, articulation rate, and percentage of pause time all uniquely characterized her performance. Printed versions of Angelou's inaugural poem were also analyzed. Inconsistencies in spelling, punctuation, spacing, and line and stanza breaks, along with additions, omissions, and sequence changes of words and phrases, were found. The poem performed possesses a richness unpredictable from either the extant literature on poetry readings or from Angelou's own printed pages. 相似文献